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The VIMOS Public Extragalactic Redshift Survey (VIPERS) : unbiased clustering estimate with VIPERS slit assignment

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Date
01/11/2018
Author
Mohammad, F. G.
Bianchi, D.
Percival, W. J.
de la Torre, S.
Guzzo, L.
Granett, B. R.
Branchini, E.
Bolzonella, M.
Garilli, B.
Scodeggio, M.
Abbas, U.
Adami, C.
Bel, J.
Bottini, D.
Cappi, A.
Cucciati, O.
Davidzon, I.
Franzetti, P.
Fritz, A.
Iovino, A.
Krywult, J.
Le Brun, V.
Le Fevre, O.
Malek, K.
Marulli, F.
Polletta, M.
Pollo, A.
Tasca, L. A. M.
Tojeiro, R.
Vergani, D.
Zanichelli, A.
Arnouts, S.
Coupon, J.
De Lucia, G.
Ilbert, O.
Moscardini, L.
Moutard, T.
Keywords
Cosmology: observations
Large-scale structure of universe
Galaxies: high-redshift
Galaxies: statistics
QB Astronomy
QC Physics
3rd-DAS
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Abstract
The VIPERS galaxy survey has measured the clustering of 0.5 <z <1.2 galaxies, enabling a number of measurements of galaxy properties and cosmological redshift-space distortions (RSD). Because the measurements were made using one-pass of the VIMOS instrument on the Very Large Telescope (VLT), the galaxies observed only represent approximately 47% of the parent target sample, with a distribution imprinted with the pattern of the VIMOS slitmask. Correcting for the effect on clustering has previously been achieved using an approximate approach developed using mock catalogues. Pairwise inverse probability (PIP) weighting has recently been proposed to correct for missing galaxies, and we apply it to mock VIPERS catalogues to show that it accurately corrects the clustering for the VIMOS effects, matching the clustering measured from the observed sample to that of the parent. We then apply PIP-weighting to the VIPERS data, and fit the resulting monopole and quadrupole moments of the galaxy two-point correlation function with respect to the line-of-sight, making measurements of RSD. The results are close to previous measurements, showing that the previous approximate methods used by the VIPERS team are sufficient given the errors obtained on the RSD parameter.
Citation
Mohammad , F G , Bianchi , D , Percival , W J , de la Torre , S , Guzzo , L , Granett , B R , Branchini , E , Bolzonella , M , Garilli , B , Scodeggio , M , Abbas , U , Adami , C , Bel , J , Bottini , D , Cappi , A , Cucciati , O , Davidzon , I , Franzetti , P , Fritz , A , Iovino , A , Krywult , J , Le Brun , V , Le Fevre , O , Malek , K , Marulli , F , Polletta , M , Pollo , A , Tasca , L A M , Tojeiro , R , Vergani , D , Zanichelli , A , Arnouts , S , Coupon , J , De Lucia , G , Ilbert , O , Moscardini , L & Moutard , T 2018 , ' The VIMOS Public Extragalactic Redshift Survey (VIPERS) : unbiased clustering estimate with VIPERS slit assignment ' , Astronomy & Astrophysics , vol. 619 , 17 . https://doi.org/10.1051/0004-6361/201833853
Publication
Astronomy & Astrophysics
Status
Peer reviewed
DOI
https://doi.org/10.1051/0004-6361/201833853
ISSN
1432-0746
Type
Journal article
Rights
© ESO 2018. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1051/0004-6361/201833853
Description
RT acknowledges financial support from the European Research Council through grant n. 202686.
Collections
  • University of St Andrews Research
URL
https://arxiv.org/abs/1807.05999
URI
http://hdl.handle.net/10023/16456

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